从静态类更新richtextbox

本文关键字：richtextbox 更新 静态类 | 更新日期: 2023-09-27 18:20:50

我有以下代码：

namespace SSS.RemoteTruckService
{
  public partial class Startup : Form
  {
    private Timer _gpsTimer;
    private Timer _ppsTimer;
    private Timer _creditCardTimer;
    private Timer _iniTimer;
    public string Message
    {
      get { return richTextBox_Message.Text; }
      set
      {
        richTextBox_Message.Invoke((MethodInvoker)(() 
          => richTextBox_Message.Text = DateTime.Now + " " + 
          value + Environment.NewLine + richTextBox_Message.Text));
      }
    }
    public Startup()
    {
      InitializeComponent();
    }
    private void ButtonStartClick(object sender, EventArgs e)
    {
      StartRemoteTruck();
    }
    private void ButtonPauseClick(object sender, EventArgs e)
    {
      if (_gpsTimer.Enabled) _gpsTimer.Enabled = false;
      if (_ppsTimer.Enabled) _ppsTimer.Enabled = false;
      if (_creditCardTimer.Enabled) _creditCardTimer.Enabled = false;
      if (_iniTimer.Enabled) _iniTimer.Enabled = false;
      ProcessIniFile.StopProcess();
    }
    public void StartRemoteTruck()
    {
      Message = "RemoteTruck started.";
      if (Settings.GlobalSettings == null)
      {
        Message = "GlobalSettings was null or not loaded. Cannot continue.";
        Logging.Log("GlobalSettings was null or not loaded. Cannot continue.", "RemoteTruck", Apps.RemoteTruckService);
        Environment.Exit(0);
      }
      if (Settings.GlobalSettings.IniFileWatcherEnabled)
      {
        ProcessIniFile.StartProcess();        
      }
      CreateTimers();      
    }

在ProcessIniFile.StartProcess()中，我有代码：

namespace SSS.RemoteTruckService.inifile
{
  public static class ProcessIniFile
  {
    private static DateTime _iniLastWriteTime;
    private static readonly string Inifile = Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.Windows), "sss.ini");
    private static FileSystemWatcher _watcher;
    public static void StartProcess()
    {  
      ReadIniFile();
      SaveCurrentIniReadings();
      CreateIniFileWatcher();
    }
    public static void StopProcess()
    {
      if (_watcher != null)
      {
        _watcher.EnableRaisingEvents = false;
        _watcher = null;
      }
    }
    private static void CreateIniFileWatcher()
    {
       _watcher = new FileSystemWatcher
        {
          Path = Environment.GetFolderPath(Environment.SpecialFolder.Windows),
          NotifyFilter = NotifyFilters.LastWrite,
          Filter = "sss.ini"
        };
      _watcher.Changed += SssIniWatcherChanged;
      _watcher.EnableRaisingEvents = true;
    }

我想向调用表单传递文件观察器的读取状态。

也许我想得太多了，但如果我想在主窗体上添加Message，我该怎么做？

从静态类更新richtextbox

您可以使用Events来实现这一点。您的流程可以发送事件，表单可以处理这些事件。更多信息：http://msdn.microsoft.com/en-us/library/awbftdfh.aspx

我喜欢使用的简单但不漂亮的方法是使表单的这一部分也是静态的。例如，创建一个静态变量WriteMessage，在Form Load或Startup()中，您可以设置它：

WriteMessage = (s) => Message = s;

当然，这有一些问题，但这是一个快速完成的方法。其中一个问题是，如果您不在UI线程上，则可能需要使用Dispatcher.invoke。

相关文章：